> Another example: Ingo's VFS stresstest which is hitting i_sem hard: it only> does ~8000 ops/sec on an 8-way, and it's an artificial microbenchmark which> is _designed_ to hit that lock hard. So if/when i_sem is converted to a> mutex, I figure that the benefits to ARM in that workload will be about a> 0.01% performance increase. ie: about two hours' worth of Moore's law in a> dopey microbenchmark.